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【单选题】
Martin ________ Shanghai several times, and he knew itvery well.A.
has been visiting
B.
had visited
C.
has visited
D.
had been visited
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【简答题】设有如下关系表： 则下列操作正确的是（ ）。 A)T=R/S B)T=R∩S C)T=R×S D)T=R∪S
【简答题】Peter: Let’s play computer s! Barry: That sounds interesting, but I don't have a computer. Peter: Well, do you have a volleyball? Barry: Yes. Peter: Then let's play volleyball. Barry: Oh, volleyba...
【多选题】How does Ms. Barry’s program benefit Isabel and her son?
A.
Isabel has recently passed her GED exam.
B.
And her five-year-old son, Ben, began kindergarten this fall after three years in Ms. Barry’s program.
【简答题】根据对话情景，填入恰当的单词。（每空一词，每词1分，共6分） M: Hi, Barry. So what’s the plan? W: Do you feel like playing tennis tonight? M: That’s a good idea. I haven’t played tennis in ages. W: Great. Is 7:00 all right? M: Cou...
【单选题】Who's 'Buddy'?
A.
Barry Landau's friend
B.
Betty Currie's cousin
C.
Bill Clinton's dog
D.
George Washington's play-date.
【简答题】设有如下三个关系表 下列操作中正确的是 A)T=R ∩ S B)T=R ∪ S C)T=R × S D)T=R/S
【简答题】Thanks to the Web, We’re Alone Together and Loving it There's a professor, Barry Wellman, at the University of Toronto in Canada who has come up with a term to describe the way a lot of us North Ameri...
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